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Eduard Simon, a German apothecary, discovers polystyrene. [2] 1844. Thomas Hancock patents the vulcanization of rubber in Britain immediately followed by Charles Goodyear in United States. [3] 1856. Parkesine, the first member of the Celluloid class of compounds and considered the first man-made plastic, is patented by Alexander Parkes. [4] 1869.
It is the operating subsidiary of Dow Inc., a publicly traded holding company incorporated under Delaware law. [ 3 ] With a presence in around 160 countries, it employs about 36,000 people worldwide. [ 1 ]
Rhinoplasty: Treatments for the plastic repair of a broken nose are first mentioned in the Edwin Smith Papyrus, [86] a transcription of text dated to the Old Kingdom from 3000 to 2500 BCE. [87] Surgical suture: The earliest reports of surgical suture date to 3000 BC in ancient Egypt, and the oldest known suture is in a mummy from 1100 BC. [88]
California will conclude a two-year investigation into Exxon and the fossil fuel industry's role in causing global plastic pollution by summer and decide if it will file a lawsuit against oil ...
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49 kya – 30 kya: Ground stone tools – fragments of an axe in Australia date to 49–45 ka, more appear in Japan closer to 30 ka, and elsewhere closer to the Neolithic. [46] [47] 47 kya: The oldest-known mines in the world are from Eswatini, and extracted hematite for the production of the red pigment ochre. [48] [49]
B.C. roll – a type of sushi invented in Vancouver in 1974 by chef Hidekazu Tojo. [ 1] Beaver tails and touton – fried dough pastry that is sold in a variety of flavours. Butter tart – a filling of butter, sugar, syrup, and egg, baked in a pastry shell. Caesar (cocktail) – invented by Walter Chell in Calgary in 1969.
WWDC 2019 (June 3–7, 2019) WWDC 2019 was held from June 3 to June 7 at the San Jose Convention Center in California. [129] [130] At the keynote that kicked off the event, Apple announced iOS 13, iPadOS, macOS Catalina, tvOS 13, watchOS 6, a redesigned Mac Pro, the Pro Display XDR, [131] and the new SwiftUI framework.